On the “Punch List” this week, we’ll teach you all about gardening tools: which ones to use, how to sharpen them, clean them and maintain them. Denver Post gardening contributor Betty Cahill and her friend, Alan Rollinger, show you the proper way to care for your tools, step-by-step. If you are trying to create the ideal Colorado garden, follow along with Betty’s “Punch List” column in the Grow section of The Denver Post or just click on the Home & Garden tab in the lifestyle section of our website. She explains what to do each week to end up with a garden of which you can be proud.

Florida’s state social services agency investigated Nikolas Cruz’s home life more than a year before police say he killed 17 people at his former high school, closing the inquiry after determining that his “final level of risk is low,” despite learning that the teenager had behavioral struggles and was planning to buy a gun, according to an investigative report.